Articles | Volume 10, issue 6
Development and technical paper
16 Jun 2017
Development and technical paper |  | 16 Jun 2017

rpe v5: an emulator for reduced floating-point precision in large numerical simulations

Andrew Dawson and Peter D. Düben


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Andrew Dawson on behalf of the Authors (11 Apr 2017)  Author's response    Manuscript
ED: Publish as is (04 May 2017) by Steve Easterbrook
Short summary
Weather and climate models must become more efficient if they continue growing in complexity. One option for reducing computational cost is to reduce numerical precision. We present a tool that allows users to study how models perform with reduced numerical precision. The tool is applied to a geophysical use case where precision is heavily reduced while maintaining suitable accuracy. The tool can be applied to other models to determine whether they can be made more computationally efficient.